Gun shell casing display



FIG. 1 is a perspective view of a gun shell casing display showing the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side view thereof;

FIG. 6 is front view thereof; and,

FIG. 7 is a back view thereof. 

CLAIM I claim the ornamental design for a gun shell casing display, as shown and described. 